General Refrigeration Mechanical Services is one of the oldest and most well-respected Commercial/Industrial HVAC/Refrigeration contractors in the suburban Chicagoland area. We specialize in all areas including heating, ventilation, air conditioning, refrigeration, sheet metal, piping, medical gas, design & build, rooftops, reciprocating chillers, boilers, refrigerant conversions, pneumatic & DDC controls, energy management, computer room air conditioning and more. All of our customers' HVAC/Refrigeration needs are being met by one of our expert certified technicians 24 hours a day, 7 days a week, 365 days a year. General Refrigeration Mechanical Services has been proudly serving suburban Chicagoland since 1952.